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23220300012 = 22371337574703
BaseRepresentation
bin10101101000000010…
…011010100011101100
32012221021002110101120
4111220002122203230
5340023344100022
614400043340540
71451264202450
oct255002324354
965837073346
1023220300012
119936288098
124600521750
1322609032c0
1411a3c76660
1590d828d5c
hex56809a8ec

23220300012 has 96 divisors (see below), whose sum is σ = 68486326272. Its totient is φ = 5958510336.

The previous prime is 23220299989. The next prime is 23220300023. The reversal of 23220300012 is 21000302232.

It is a junction number, because it is equal to n+sod(n) for n = 23220299964 and 23220300000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246948 + ... + 327755.

It is an arithmetic number, because the mean of its divisors is an integer number (713399232).

Almost surely, 223220300012 is an apocalyptic number.

It is an amenable number.

23220300012 is an abundant number, since it is smaller than the sum of its proper divisors (45266026260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23220300012 is a wasteful number, since it uses less digits than its factorization.

23220300012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574767 (or 574765 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23220300012 its reverse (21000302232), we get a palindrome (44220602244).

The spelling of 23220300012 in words is "twenty-three billion, two hundred twenty million, three hundred thousand, twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 37 39 42 52 74 78 84 91 111 148 156 182 222 259 273 364 444 481 518 546 777 962 1036 1092 1443 1554 1924 2886 3108 3367 5772 6734 10101 13468 20202 40404 574703 1149406 1724109 2298812 3448218 4022921 6896436 7471139 8045842 12068763 14942278 16091684 21264011 22413417 24137526 29884556 42528022 44826834 48275052 52297973 63792033 85056044 89653668 104595946 127584066 148848077 156893919 209191892 255168132 276432143 297696154 313787838 446544231 552864286 595392308 627575676 829296429 893088462 1105728572 1658592858 1786176924 1935025001 3317185716 3870050002 5805075003 7740100004 11610150006 23220300012